CN1074182C

CN1074182C - Safety socket

Info

Publication number: CN1074182C
Application number: CN96113108A
Authority: CN
Inventors: 李天爵
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-20
Filing date: 1996-09-20
Publication date: 2001-10-31
Anticipated expiration: 2016-09-20
Also published as: CN1177851A

Abstract

The present invention relates to a safety socket which is inserted with a plug. The safety socket comprises a socket body, two first conductive sheets, two second conductive sheets and a safety device, wherein the two jacks which are inserted with the plug are arranged on the front end of the socket body; the two first conductive sheets are fixed in the socket body; the two second conductive sheets are fixed in the socket body in the direction which is parallel to the jacks and a distance is formed by separating the first conductive sheets. When the plug is inserted in the socket body and oppresses the safety device to downwards moved, the two first conductive sheets come to contact with the two second conductive sheets to form electric property contact. When one of the two jacks is inserted in a conductive object, the safety device can not be downwards pressed; thus, the electric property contact can not be formed.

Description

Safety socket

The present invention relates to a kind of safety socket, it is a kind of safety socket that only can't electrically contact conduction under the situation of one of two jacks insertion conducting objects.

Present employed socket, constituted in order to two conducting strips that connect external power source by having two jacks and jack body inside on the simple jack body, and one of this two conducting strip is connected to live wire, another conducting strip is connected to ground wire, when the plug with two conducting strips inserts this socket, promptly finish electrical contact and conduct electricity, and when the conducting objects of holding a non-plug is inserted one of two jacks, if touch the conducting strip that connects live wire, also can therefore conduct electricity, for general young disoriented children, this is not only common but also dangerous action, also is to understand the behavior that influence life security.

The object of the present invention is to provide a kind of safety socket, it makes socket just can finish electrical contact when two jacks insert conducting objects simultaneously, if then can't electrically contact when only one of two jacks insert conducting objects.

The object of the present invention is achieved like this, and a kind of safety socket promptly is provided, and itself and a plug are pegged graft, and this safety socket comprises: a jack body has two jacks of pegging graft with plug in front end; Two first conducting strips are fixed on described jack body inside; Two second conducting strips are fixed on described jack body inside with the direction parallel with described jack, and separate a distance with described first conducting strip; One safety device; Wherein, described each second conducting strip has a perforation, and described safety device comprises: a balancing unit, have two protuberances, and each protuberance runs through the perforation of each second conducting strip; One pressure hammer has one and articulates a spheroid and a connected press rods, and described pivot joint spheroid is articulated in described balancing unit, and described press rods then is seated on described two second conducting strips; When described socket inserts jack by plug and when oppressing two protuberances of described balancing unit with a parallel force, described balancing unit moves down, the pressure hammer that articulates with described balancing unit also moves down thereupon, and described press rods is oppressed second conducting strip and moved down and touch described two first conducting strips and form electrical contact.

A kind of safety socket, itself and a plug are pegged graft, and this safety socket comprises: a jack body, internal side wall have two keyholes, and front end has two jacks, and described plug is plugged in it; Two first conducting strips are fixed on described jack body inside; Two second conducting strips are fixed on described jack body inside with the direction parallel with described jack, and separate a distance with described first conducting strip; One safety device; Wherein, described each second conducting strip has a perforation, described safety device comprises: a balancing unit, have a cylinder and connected two shoulders, described cylinder has a perforation and a protruding pin, described protruding pin rotatably inserts two keyholes of described jack body, and the described two shoulders outside forms two protuberances, the inboard shrinkage pool that forms, and the protuberance in each shoulder outside protrudes in the perforation of each second conducting strip in a movable manner; One pressure hammer is placed on two first conducting strips; One press rods is placed between the described two shoulder inboards, and runs through the perforation on the described cylinder and be connected with described pressure hammer; Two flexure strips, an end are fixed in described two shoulder inside fronts, and the other end is fixed on the described press rods, promptly connects described balancing unit and press rods; When described socket inserts jack by plug and the protuberance of oppressing the two shoulders outside of described balancing unit simultaneously when inwardly pushing, described press rods by the flexure strip effect to lower compression, the pressure hammer that is connected with press rods also moves down thereupon, oppress two first conducting strips and move down, touch two second conducting strips and form electrical contact.

Below in conjunction with accompanying drawing, embodiments of the invention are described, wherein:

Fig. 1 is the elevation cross-sectional view of a preferred embodiment of the present invention;

Fig. 2 is the last pseudosection of a preferred embodiment of the present invention;

Fig. 3 is the right pseudosection of the safety device among Fig. 1;

Fig. 4 is the socket base among Fig. 1 and the top view of first conducting strip;

Fig. 5,6 is the elevation cross-sectional view of the operational circumstances of the socket among Fig. 1;

Fig. 7 is the elevation cross-sectional view of another preferred embodiment of the present invention;

Fig. 8 is the three-dimensional exploded view of another preferred embodiment of the present invention;

Fig. 9,10 is the elevation cross-sectional view of the mode of operation of the socket among Fig. 7.

Please refer to the elevation cross-sectional view of a preferred embodiment of the present invention shown in Fig. 1,2 and go up pseudosection, this socket is mainly by pad 3c and 3d on a

jack body

2,2 first conducting strip 3a and 3b, 2 first conducting strips, formations such as pad 4c on 2 second conducting

strip

4a and 4b, 2 second conducting strips and 4d, a balancing unit 7 and a pressure hammer 8.

By Fig. 1, shown in 2 as can be known, this jack body 2 has a socket loam cake 2a and a socket base 2b, this socket loam cake 2a has a groove 13 of two jack 12a and 12b and internal side wall, this socket base 2b has 2 first protuberance 5a and 5b and two higher

second protuberance

6a and 6b in addition, this socket can be fixed in an ad-hoc location, for example on the wall, this first conducting strip 3a and 3b are individually fixed on the first protuberance 5a and the 5b, and have a pad 3c and 3d (shown in Figure 4) respectively, this second conducting strip 4a comprises a first parallel with the jack direction with 4b, it respectively has a perforation 11a and a 11b, one connects this first bottom, and each becomes the second portion of the L type of level with diagonal, it has pad 4c respectively, 4d, second protuberance 6a and the 6b then is fixed in above-mentioned two-part junction.

This balancing unit 7 has 2 the

3rd protuberance

7a and 7b, and described the

3rd protuberance

7a and

7b pass perforation

11a and 11b respectively; These pressure hammer 8 one ends connect a spherical spheroid 8a that articulates, the other end connects a press rods 8b, this sphere articulates spheroid 8a and pivotally is articulated in balancing unit 7, this press rods 8b then is fixed on the second portion of 2 second conducting

strip

4a and 4b, two ends also extend to respectively in the groove 13 of these jack body 2 inboards, and this groove 13 restriction press rods 8b are move left and right within the specific limits.For the purpose of clearer, please refer to the right side sectional view of balancing unit 7 shown in Figure 3 and pressure hammer 8 annexations, balancing unit 7 among the figure can be utilized and link with the pivot joint of pressure hammer 8 and pivot, and 2 the

3rd protuberance

7a and 7b are because of running through perforation 11a, the 11b on this second conducting strip respectively, make this balancing unit 7 can only be in a set scope left rotation and right rotation, Fig. 4 only shows the position of

socket base

2b and 2 first conducting strip 3a and 3b, and this first conducting strip 3a and 3b are fixed on the first protuberance 5a and the 5b.

Below cooperate other assemblies to narrate its function, please refer to shown in Figure 5, when plug 1 inserts jack 12a and 12b, can oppress two

protuberance

7a and 7b of this balancing unit 7, make that balancing unit 7 is slightly parallel to move down, and then the pressure hammer 8 that articulates of compressing and balancing unit 7 also moves down and can't pivot, when pressure hammer 8 moves down, exert pressure downwards by the press rods 8b that drives on the pressure hammer 8, make that the second portion of 2 second conducting

strip

4a and 4b is also downward, contact pad 3c and 3d on 2 first conducting strips respectively up to the pad 4c of 2 second conducting strips and 4d, finish electrical contact, this possesses the function of general socket.

Please refer to shown in Figure 6, if only when jack 12b has conducting objects 1 ' insertion, then can oppress the protuberance 7b of balancing unit 7, this balancing unit 7 can be because of the pivot angle that tilts, pressure hammer 8 can or not move down because of pivot yet, just can not cause 2 second conducting strip 4a to contact with the electrical of first conducting strip yet, and not have the situation generation of conduction with 4b.

Present embodiment is the pivot joint that utilizes in a socket between balancing unit 7 and the pressure hammer 8, and be subjected to wait to parallel force during to lower compression in balancing unit 7, be that the protuberance 7a at two ends and 7b are when being subjected to simultaneously exerting pressure downwards, just electrically contact, if one of two

ends protuberance

7a, 7b of only being balancing unit 7 are subjected to when lower compression, can cause the pivot of balancing unit 7 because of balancing unit 7 pivot joint, unlikelyly cause electrical contact with pressure hammer 8.

Please refer to another preferred embodiment elevation cross-sectional view and three-dimensional exploded view of the present invention shown in Fig. 7,8, this socket mainly is made of a

jack body

22,2 first conducting

strip

23a and 23b, 2 second conducting

strip

24a and 24b, a safety device 50 etc.

Shown in Fig. 7,8, jack body 22 has a socket loam cake 22a and socket base 22b, and form two

jack

32a and 32b, this socket loam cake 22a has one first keyhole 25a, this socket base 22b has one second keyhole 25b, 2

first protuberance

25c and 25d, 2 first dividing

plate

26a and 26b and two second partition 26c and 26d, then has the both fixed gaps that be arranged in parallel approximately between dividing plate 26a, 26c or between dividing plate 26b, 26d; 2 first conducting strip 23a slightly become the S type with 23b, are individually fixed in

protuberance

25c and 25d, and are connected with external power source with an end; 2 second conducting strip 24a comprise a first parallel with the jack direction with 24b, it respectively has a perforation 31a and a 31b, and one connects this first bottom is placed between the first dividing plate 26a, second partition 26b respectively and the second portion between second partition 26c, second partition 26d.The other end of the first conducting

strip

23a and 23b is a specific range at interval above the second conducting

strip

24a and 24b respectively then; Safety device 50 comprises a balancing unit 27, one pressure hammer 28, one press rods 29 and two

flexure strip

30a and 30b, this balancing unit 27 comprises two

shoulder

27a and 27b, one cylinder 27c, the 2 second protuberance 27f and the 27g in the protruding pin 27d on this cylinder and this shoulder outside, this balancing unit 27 utilizes protruding pin 27d to insert the first keyhole 25a of socket loam cake 22a and the second keyhole 25b on the socket base 22b respectively, and can being rotated, balancing unit 27 can't move, and the two protuberance 27f in two shoulder 27a and the 27b outside and 27g passed through perforation 31a on the second conducting strip 24a and the perforation 31b on the second conducting strip 24b respectively, this cylinder 27c and two shoulder 27a, the 27b inboard then forms a circular shrinkage hole, and cylinder 27c has a perforated holes 27e on this shrinkage pool inside bottom; This pressure hammer 28 is semi-cylindrical form, and it places on 2 first conducting strip 23a and the 23b, and has one the 3rd keyhole 28a; This press rods 29 is via the circular shrinkage hole on the balancing unit 27, passes hole 27e and inserts the 3rd keyhole 28a on the pressure hammer 28, makes press rods 29 fixing with pressure hammer 28; This two

flexure strips

30a and 30b are symmetric shape and are fixed on the press rods 29 with an end, then be individually fixed in the inboard top of

shoulder

27a, 27b on the balancing unit 27 in the other end, the position of press rods 29 is lower than the position on balancing unit 27 inboard tops, below promptly cooperates other its functions of assembly division.

Please refer to shown in Figure 9, when a plug 21

inserts jack

32a and 32b, two shoulder 27a of this balancing unit 27 of meeting compressing and 27b outside

protuberance

27f and 27g inwardly push, the two flexure strip 30a and the 30b that are fixed in the inboard top of this two

shoulders

27a and 27b also can exert pressure downwards because of squeezing action, because

flexure strip

30a and 30b exert pressure, and then press rods 29 is moved down, also having driven pressure hammer 28 exerts pressure downwards, so that 2 first conducting

strip

23a and 23b exerting pressure downwards because of pressure hammer 28, and contact with the second conducting

strip

24a and 24b respectively, finish electrical contact and conduct electricity, this action has possessed the function of general socket.

Please refer to shown in Figure 10, at first, when a conducting objects 21 is inserted the jack 32b of one of two jacks, the outside protuberance 27g that can oppress the shoulder 27b of balancing unit 27 inwardly pushes, and because the outside protuberance 27f of shoulder 27a places the perforation 31a of the second conducting strip 24a, therefore, can be because of the protruding pin 27d on the balancing unit 27 and the first keyhole 25a, the rotary reason in the second keyhole 25b junction, and whole safety device 50 is rotated, at this moment, the outside protuberance 27f below of shoulder 27a can prop up the perforation 31a below of the second conducting strip 24a because of rotation, therefore,

flexure strip

30a and 30b just can not exert pressure downwards yet, and pressure hammer 28 also can not exerted pressure downwards, and the first conducting strip 23a, the 23b and the second conducting

strip

24a, 24b also just can't contact, and then can not constitute electrical contact and conducts electricity.

Present embodiment utilizes the protruding pin 27d of the balancing unit 27 in the safety device 50 and the rotary characteristic in the first keyhole 25a junction on the jack body 22 in a socket, as two shoulder 27a of balancing unit 27, when 27b is squeezed simultaneously, the elastic force that can cause

flexure strip

30a, 30b is finished electrical contact to lower compression, if only one of two shoulders of balancing unit 27 are squeezed, can can't reach electrical contact because of the rotation of safety device 50.

In sum, socket of the present invention has more the characteristic that can't conduct electricity as if only when single jack inserts conducting objects except that having general utility functions, and this provides the function of a security protection to the user, has protected user's safety.

Claims

1, a kind of safety socket, itself and a plug are pegged graft, and this safety socket comprises: a jack body has two jacks of pegging graft with plug in front end; Two first conducting strips are fixed on described jack body inside; Two second conducting strips are fixed on described jack body inside with the direction parallel with described jack, and separate a distance with described first conducting strip; One safety device; It is characterized in that described each second conducting strip has a perforation, described safety device comprises: a balancing unit, have two protuberances, and each protuberance runs through the perforation of each second conducting strip;

One pressure hammer has one and articulates a spheroid and a connected press rods, and described pivot joint spheroid is articulated in described balancing unit, and described press rods then is seated on described two second conducting strips;

When described socket inserts jack by plug and when oppressing two protuberances of described balancing unit with a parallel force, described balancing unit moves down, the pressure hammer that articulates with described balancing unit also moves down thereupon, and described press rods is oppressed second conducting strip and moved down and touch described two first conducting strips and form electrical contact.

2, socket as claimed in claim 1 is characterized in that, then has one in the described jack body in order to limit the groove that press rods moves in a set scope.

3, socket as claimed in claim 1 is characterized in that, described conducting strip is connected in external power source.

4, socket as claimed in claim 1 is characterized in that, the distance of being separated by greater than described first conducting strip and second conducting strip in order to the protuberance distance moving up and down of the perforation that runs through described second conducting strip on the described balancing unit.

5, socket as claimed in claim 1 is characterized in that, described balancing unit and press rods are made by megohmite insulant.

6, socket as claimed in claim 1 is characterized in that, described balancing unit can be articulated in described pressure hammer and rotate.

7, a kind of safety socket, itself and a plug are pegged graft, and this safety socket comprises: a jack body, internal side wall have two keyholes, and front end has two jacks, and described plug is plugged in it; Two first conducting strips are fixed on described jack body inside; Two second conducting strips are fixed on described jack body inside with the direction parallel with described jack, and separate a distance with described first conducting strip; One safety device; It is characterized in that described each second conducting strip has a perforation, described safety device comprises:

One balancing unit, have a cylinder and connected two shoulders, described cylinder has a perforation and a protruding pin, described protruding pin rotatably inserts two keyholes of described jack body, the described two shoulders outside forms two protuberances, the inboard shrinkage pool that forms, and the protuberance in each shoulder outside protrudes in the perforation of each second conducting strip in a movable manner;

One pressure hammer is placed on two first conducting strips;

One press rods is placed between the described two shoulder inboards, and runs through the perforation on the described cylinder and be connected with described pressure hammer;

Two flexure strips, an end are fixed in described two shoulder inside fronts, and the other end is fixed on the described press rods, promptly connects described balancing unit and press rods;

When described socket inserts jack by plug and the protuberance of oppressing the two shoulders outside of described balancing unit simultaneously when inwardly pushing, described press rods by the flexure strip effect to lower compression, the pressure hammer that is connected with press rods also moves down thereupon, oppress two first conducting strips and move down, touch two second conducting strips and form electrical contact.

8, socket as claimed in claim 7 is characterized in that, described first conducting strip is connected in external power source.

9, socket as claimed in claim 8 is characterized in that, described press rods position is lower than the position that described balancing unit is connected with flexure strip.

10, socket as claimed in claim 7 is characterized in that, the external diameter of described press rods is slightly less than the perforation internal diameter of described balancing unit.

11, socket as claimed in claim 7 is characterized in that, described balancing unit, press rods and pressure hammer are made by megohmite insulant.